Play Tetris on this LED-equipped tie and leave onlookers puzzled

The tie, which comes complete with animated falling tetrominoes, is the work of naval engineer Bill Porter. His DIY neckwear makes use of a tiny DigiSpark microcontroller, around 80 RGB LEDs, and of course an actual necktie.

Porter estimates that his 8-bit creation cost him around $50 to make, and he hopes to improve it with Bluetooth connectivity, allowing someone to play Tetris on the tie via a connected smartphone that acts as a controller. But don't go looking for one at your nearest Macy's just yet—Bill's creation is only a prototype.